body,h1,h2,h3,h4,h5,h6,dl,dd,ol,ul,p,input,li,a,span,div,header,footer,nav,section,input,textarea,table{
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
}
ul>li,ol>li{
    list-style-type: none;
}
a{
    text-decoration: none;
    color: black;
}
.clearfix:after{
    content: "";
    display: block;
    clear: both;
}
input,textarea,select,button{
    outline: none;
}

